Penggayaan APA
SKINNER, Brian J., PORTER, Stephen C.. (1987).
Physical geology .
New York:
John Wiley & Sons.
Chicago Style
SKINNER, Brian J., PORTER, Stephen C..
Physical geology.
New York:
John Wiley & Sons,
1987.
Buku.
MLA Style
SKINNER, Brian J., PORTER, Stephen C..
Physical geology.
New York:
John Wiley & Sons,
1987.
Buku.
Turabian Style
SKINNER, Brian J., PORTER, Stephen C..
Physical geology.
New York:
John Wiley & Sons,
1987.
Buku.